As the official iPhone event is just hours away the device's secrets become exposed one by one. From an alleged user manual of the upcoming flagship iPhone 5S comes the home button slash Touch ID sensor, which is said to be a fancy name for a fingerprint scanner. Click on the image below for full-res details. The Wall Street Journal seems to back this fingerprint claim as well. Snapshot...
Source: http://www.gsmarena.com/iphone_5s_home_button_touch_id_duo_confirmed_via_manual-news-6757.php